4.4
Yes
No
1
AVM
23 April 2012
Grandstream DP730
Gigaset Comfort 500A IP Flex
Gigaset E560HX
Grandstream DP722
AVM FRITZ!Fon C6
BT 3570
Panasonic KX-TGC260
Vtech CS2050
Panasonic KX-TGC220
Panasonic KX-TGD620E
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